XSS in Flat Preloader Project
CVE-2021-24789
The Flat Preloader WordPress plugin before 1.5.5 does not escape some of its settings when outputting them in attribute in the frontend, which could allow high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html is disallowed
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.006 (46.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Flat_preloader_project Flat_preloader
- Unknown Flat Preloader — versions 1.5.5
Weakness classification (CWE)
Public proof-of-concept exploits
References
- contact@wpscan.com (Exploit, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-24789?
- CVE-2021-24789 is a medium-severity vulnerability in Flat Preloader Project, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2021-11-01.
- How severe is CVE-2021-24789?
- Medium severity. CVSS v3 base score is 4.8 out of 10.
- Is CVE-2021-24789 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.